Closure lock



June 7, 19 32. v E, DAWES,

CLOSURE LOCK Filed Nov. 1, 1929 3 Sheets-Sheet 1 Inventor I Aii omey June 7, 1932.

R. E. DAWES CLOSURE LOCK Fild Nov. 1, 1929 s Sheets-Sheet 2 Jazrza W3 B fi v Attorney R. E. DAWES June 7, 1932.

CLOSURE LOCK I 5 Sheets-Sheet 5 Filed Nov. l, 1929 N\ ig I n venior Jawas' M A ttomey I Patented June 7, 1932 3031mm EARL Dawn's, or mo znmivi'monrauh Application fl ledliovember 1, 1929. Serial No. 4o4,o 55.

The present invent-ion relates to improvements' in means for locklng closures and mqre particularly to an electro-magnetic lock for I gasoline tank filler caps. s 5' The principalobject of the invention is to provide a lock for gasoline tank caps which may be unlocked by switch means located on the instrument board of the vehicle so as to eliminate thenecessity of the driver leaving 7 the vehicle when replenishing his fuel sup ply at a gasoline'station. I uring the course of the following description and claim numerous other important objects and advantages of the invention will readily become apparent. In the drawings:

Figure 1 represents a fragmentary longi tudinal sectional View through a'iportion' of I anautomobile showing the disposition of the 9: present invention.

Figure 2 represents a diagrammatic view of the electrical circuit and the constituent electrical devices. f r Figure 3 represents a fragmentary; ver- 2 tical sectional view through a gasolene tank equipped with the improved lock means for .its closure. V s Figure 4 represents a cross sectional view taken substantially on line 4'4- of Figure 3. so

tional view taken substantiallyon the same line as Figure 4, but' showing the bolt in retracted position.

Figure 6 represents a fragmentary sec- 35 tional view taken. substantially on line j of Figure 3 and looking'in the direction of of Figure 3 'andlooking' in the direction of 2' the arrows. I I y Figure 9 represents aperspective vieW'of the armature bolts ofthe lock. I

Referring to the drawings wherein 'like numerals designate like parts, it will-be seen that numeral 5 denotes the usual cowl por-I 5 tion of an automobile body, while 6 repre- I adjacent side portion of theneck 10. The "upper portion of the neck at this point recedes ure 3. The upperportion of this partition a cross member 19, while to the partition 17 Figure 5 represents a fragmentary secthesaid bar. w through the aforementioned opening in the,

the switch 27 while a connection 31 is made sents the usual instrument board.- The chas;

sis of'the automobile is designated nu- 1 moral 7 and to the chassis is secured or suitably mounted a' battery 8. Toward the rear,

end of the chassis and secured thereto is the usual fuel tank 9 from which the neck I 10 protrudes. The upper end of the neck 'Z' 10 has a circumferentially extendingshouL der 11 at a point inwardly from its eiltrem ity and hingedly secured to this shoulder as at 12 is the-cap 13 having the u'sualvent.14.-

At the inner side of the cap at a point dia= metrically opposite from the hinge 12is a socket 15 registrable with an opening in theas at 16 and a partition 17 disposed within the neck 10 is of arcuatecros's section and ex? tends upwardly in-the manner shown in Fig- O converges to meet the receding portion 16.

.of the neck 10 soas to provide a closed compartment '18. I

Mounted within the closed compartment is adjacent theupper end thereof and within the confines of'the chamber 18 is a magnetic coil 20'. An armature bar 21 is hingedly connected to the cross member 19 as at 22 and avbolt 23 having its outer end bevelled as at 24 extends laterally from the free end of This bolt is engageable neck 10 and intothe' socket 15 of the closure 13 when the said socket is registered with 5 the said opening.

A spring 25; serves to tensionally urge the bolt throughthe opening'in the neck and always maintains the closure locked against displacement. -A plate 26 is providedlon the opposite side of the bar 21-from the bolt 23 I and in opposed relation with respect? to the 1 core of the magnet 20. I

Akey operated switch 27 is provided on the instrument board and from one side .of

this switch a conductor 28 extends to the through a fuse 30 to the remaining side of 2" 1,862,257 r I Q L 1 between the negative ysideof the battery and the remaining side of the said magnet 20. It will thus be seen that when the switch 27 is closed by means of the proper key 32,

1 5 the magnet 20 will become energized and attract the bar 21. The attraction of the bar 21 will disconnect the bolt 23 from the socket 15 of the closer 13, thus permitting the closer f to be lifted. The switch may then be opened so that when the closer is again permitted to gravitate to its closed position, the bevelled bolt 23- will engage automatically within the socket to again secure the closer. While the foregoing description specifi- 15 cally sets forth-the invention, it is to be understood that various changes in the shape,

, size/and materials may be resorted to with-' V out departing from the spirit and scope of the invention as claimed hereinafter.

Having thus described the inventlon, what is claimed as new is: I p

A closure fastener for containers having a filler neck comprising a partition for dividing the interior of the filler neck, said 25 partition being shaped to' provide a closed compartment in the filler neck,-a closure engageable bolt'slidable through the side of the neck from the compartment, a swingable arm ,for carrying the bolt at its free end, said arm being mounted and operative in'thecompartment, a spring in the compartment'for normally maintaining the bolt projected toward the closure, and means -inthe compartment for retracting the bolt when desired.

3; In testimony whereof I aflix my signature.

. I ROBERT EARL DAWES, 

